【Flutter】StateNotifier, Riverpodを利用し、
MVCでアプリを作っている話

Transcript

1. © 2 0 2 0 A t r a e

   , I n c . | 1 ʲ'MVUUFSʳ4UBUF/PUJpFS
   3JWFSQPEΛར༻͠ɺ
   .7$ͰΞϓϦΛ࡞͍ͬͯΔ࿩ !NVUUTV@ Mutsumi Sato ࠤ౻
   ເੵ

2. © 2 0 2 0 A t r a e

   , I n c . | 2 4BUP
   .VUTVNJ ࠤ౻
   ເੵ ೥৽ଔͰגࣜձࣾΞτϥΤೖࣾɻ
   "OESPJE LPUMJO ΤϯδχΞͱͯ͠ɺZFOUBͷϑϧεΫϥονϦχϡʔΞϧɺւ֎ల ։ͷରԠΛߦ͍·ͨ͠ɻͨ·ʹ8FCϑϩϯτ΍J04΋ॻ͍ͨΓ͠·͢ɻ
   ೥݄ΑΓZFOUBͱ݉೚ͯ͠ɺస৬αΠτ(SFFOͷ"OESPJEΞϓϦΛ'MVUUFSͰ ։ൃ͍ͯ͠·͢ɻ
   ϦϦʔεޙɺطग़ͷJ04ΞϓϦ΋'MVUUFS΁Ҡߦ༧ఆͰ͢ɻʢͨͿΜʣ ੈ ք த ͷ ਓ ʑ Λ ັ ྃ ͢ Δ ձ ࣾ Λ ૑ Δ !NVUUTV@ ࣗݾ঺հ

3. © 2 0 2 0 A t r a e

   , I n c . | ςΫϊϩδʔʹΑͬͯਓͷՄೳੑΛ֦͛ΔࣄۀΛ૑଄ 3 | ੈ ք த ͷ ਓ ʑ Λ ັ ྃ ͢ Δ ձ ࣾ Λ ૑ Δ גࣜձࣾΞτϥΤ େ੾ͳਓʹތΕΔձࣾͰ͋Γଓ͚Δ ౦ূϚβʔζ্৔ ೥
   
   
   ݄ ೥
   
   
   ݄ ౦ূҰ෦ʹࢢ৔มߋ ΞτϥΤઃཱ ೥
   ݄ ੈքதͷਓʑΛັྃ͢ΔձࣾΛ૑Δ ԯ ສԁ ໊ People Tech Company Vision Philosophy ࢿຊۚ ࣾһ਺ Ԋֵ Business Concept "*ϏδωεϚονϯάΞϓϦ Τϯήʔδϝϯτղੳπʔϧ ੒ޭใुܕٻਓϝσΟΞ ਓࡐͷྲྀಈԽͱదਖ਼഑ஔ  ࣾҎ্ར༻ ਓͱ૊৫ͷ׆ੑԽ ϏδωεΛՃ଎ͤ͞Δग़ձ͍ ສ݅Ҏ্Ϛονϯά੒ཱ  ࣾҎ্ར༻

4. © 2 0 2 0 A t r a e

   , I n c . | 4 ໾৬ͷແ͍
   ࣗ཯෼ࢄܕ૊৫ 5 ˋ ˞ ௚ ۙ ೥ ฏ ۉ ΤϯήʔδϝϯτείΞ Great Place to Work ˞(SFBU
   1MBDF
   UP
   8PSLš
   *OTUJUVUF
   +BQBO
   ࣮ࢪɹɹ
   
   
   ैۀһʙ໊ͷ෦ʣ ੈ ք த ͷ ਓ ʑ Λ ັ ྃ ͢ Δ ձ ࣾ Λ ૑ Δ WJTJPO
   
   QIJMPTPQIZ No.1 No.1 ೥ฏۉ
   ཭৬ऀ਺ ࠃ಺ϥϯΩϯά ૊৫ͷಛ௃ ૊৫తͳ࣮੷ ച্ߴ Ӧۀརӹ ࣾһҰਓ౰ͨΓച্ߴ FY2019 FY2011 FY2015 FY2019 FY2011 FY2015 FY2019 FY2011 FY2015 ʢඦສԁʣ 60 40 20 ʢඦສԁʣ 600 400 200 3000 2000 1000 ʢඦສԁʣ

5. © 2 0 2 0 A t r a e

   , I n c . | 5 ࠓ೔͓࿩͢͠Δ͜ͱ  4UBUF/PUJpFSͱ͸
    3JWFSQPEͱ͸
    ࣮ࡍͷΞʔΩςΫνϟ
    .77.ͱ໋໊͠ͳ͔ͬͨཧ༝
    ·ͱΊ

6. © 2 0 2 0 A t r a e

   , I n c . | 6 ࠓ೔͓࿩͢͠Δ͜ͱ  4UBUF/PUJpFSͱ͸
    3JWFSQPEͱ͸
    ࣮ࡍͷΞʔΩςΫνϟ
    .77.ͱ໋໊͠ͳ͔ͬͨཧ༝
    ·ͱΊ ͍ͩͿ؆ૉͳͷͰɺৄࡉʹ͓ฉ͖͍ͨ͠ํ͸
   !NVUUTV@
   ·Ͱ
   

7. © 2 0 2 0 A t r a e

   , I n c . | 7 ࠓ೔͓࿩͢͠Δ͜ͱ  4UBUF/PUJpFSͱ͸
    3JWFSQPEͱ͸
    ࣮ࡍͷΞʔΩςΫνϟ
    .77.ͱ໋໊͠ͳ͔ͬͨཧ༝
    ·ͱΊ

8. © 2 0 2 0 A t r a e

   , I n c . | 8  4UBUF/PUJpFSͱ͸ 4UBUF/PUJpFSͱ͸ w ঢ়ଶ؅ཧϥΠϒϥϦ
   w l4UBUFzͱ͍͏JNVUBCMFͳঢ়ଶΛ؅ཧ͢Δ஋Λ
   ͻͱ͚ͭͩΛอ࣋͢Δɻ
   w 4UBUFͷΠϯελϯε͕มΘͬͨΒɺมߋ͕
   ௨஌͞Εɺ7JFX͕ϦϏϧυ͞ΕΔ

9. © 2 0 2 0 A t r a e

   , I n c . | 9 $IBOHF/PUJpFS w ঢ়ଶ؅ཧϥΠϒϥϦ
   w 4UBUF/PUJpFSͱҧ͍ɺෳ਺ͷNVUBCMFͳ஋Λ࣋ͭɻ
   w OPUJGZ-JTUFOFST
   ͱ͍͏ϝιουͰ஋ͷมߋΛ
   7JFXʹ௨஌͢Δ #-P$ w ঢ়ଶ؅ཧϥΠϒϥϦ
   w 3FBDUJWF9ͷ0CTFSWBCMFʹࣅ͍ͯΔ
   w TUSFBN
   TJOLͱ͍͏΋ͷΛར༻ͯ͠஋ͷมߋɺ มߋͷड͚औΓΛߦ͏  4UBUF/PUJpFSͱ͸

10. © 2 0 2 0 A t r a e

    , I n c . | 10 $IBOHF/PUJpFS w OPUJGZ-JTUFOFST Λ͚ͭΔͷ͕໘౗
    w NVUBCMFͳͷͰɺͦΕΛ؅ཧ͢ΔϦεΫΛ௥͍ͨ͘ͳ͍ɻ
    w ଵଦͳͷͰJNNVUBCMFͷ΄͏͕γϯϓϧͰ޷͖ɻ #-P$ w TUSFBN
    TJOLͷ֓೦ཧղ͕ͭΒ͔ͬͨʜɻ
    w Ͱ͖Δਓ͸͍͢͝ͳͱײͨ͡ʜɻ  4UBUF/PUJpFSͱ͸

11. © 2 0 2 0 A t r a e

    , I n c . | 11 ࠓ೔͓࿩͢͠Δ͜ͱ  4UBUF/PUJpFSͱ͸
     3JWFSQPEͱ͸
     ࣮ࡍͷΞʔΩςΫνϟ
     .77.ͱ໋໊͠ͳ͔ͬͨཧ༝
     ·ͱΊ

12. © 2 0 2 0 A t r a e

    , I n c . | 12 
    3JWFSQPEͱ͸ 1SPWJEFSͱ͸ w 'MVUUFS͕ެࣜͰਪન͍ͯ͠Δ%*
    
    ঢ়ଶ؅ཧ
    ϥΠϒϥϦ
    w 1SPWJEFS
    
    $IBOHF/PUJpFSΛެࣜ͸͓͢͢Ί
    ͍ͯ͠Δ
    
    4JNQMF
    BQQ
    TUBUF
    NBOBHFNFOU
    

13. © 2 0 2 0 A t r a e

    , I n c . | 13 
    3JWFSQPEͱ͸ 3JWFSQPEͱ͸ w 1SPWJEFSͷ࡞ऀ͕৽ͨʹ։ൃͨ͠1SPWJEFS
    w 4UBUF/PUJpFSΛ%*
    
    4UBUF͕มߋʹͳͬͨΒ
    7JFXΛϦϏϧυ͢ΔͨΊʹར༻͍ͯ͠Δɻ
    w ϝϦοτ͸
    ͜ͷهࣄ
    ʹ͔ͬ͠Γॻ͍ͯ͋Γ·͢
    ͷͰࠓճ͸ࠩ͠߇͑·͢ɻ

14. © 2 0 2 0 A t r a e

    , I n c . | 14 ࠓ೔͓࿩͢͠Δ͜ͱ  4UBUF/PUJpFSͱ͸
     3JWFSQPEͱ͸
     ࣮ࡍͷΞʔΩςΫνϟ
     .77.ͱ໋໊͠ͳ͔ͬͨཧ༝
     ·ͱΊ

15. © 2 0 2 0 A t r a e

    , I n c . | 15 
    ࣮ࡍͷΞʔΩςΫνϟ MJC
    EJ
    EPNBJO
    JOGSBTUSVDUVSF
    QSFTFOUBUJPO
    TUBUF@DPOUSPMMFS
    TUBUF
    GFBUVSF VJ
    VUJM EBP@QSPWJEFST
    SFQPTJUPSZ@QSPWJEFST
    DPOUSPMMFS@QSPWJEFST
    
    &OUJUZ
    %BP
    3FQPTJUPSZ
    )UUQ%BP
    -PDBM%C%BP
    3FQPTJUPSZ*NQM
    %UP
    ʜ
    7JFX
    4UBUF
    4UBUF$POUSPMMFS
    4UBUF$POUSPMMFS
    4UBUF
    8JEHFUT 7JFXT
    6UJMT

16. © 2 0 2 0 A t r a e

    , I n c . | 3JWFSQPE 16 
    ࣮ࡍͷΞʔΩςΫνϟ 7JFX ɿࢀর͍ͯ͠Δํ޲ 3FQPTJUPSZ
    %BP
    ʜ 4UBUF 4UBUF 4UBUF$POUSPMMFS
    4UBUF/PUJpFS

17. © 2 0 2 0 A t r a e

    , I n c . | 3JWFSQPE 17 
    ࣮ࡍͷΞʔΩςΫνϟ 7JFX ɿࢀর͍ͯ͠Δํ޲ 3FQPTJUPSZ
    %BP
    ʜ 4UBUF 4UBUF 4UBUF$POUSPMMFS
    4UBUF/PUJpFS ᶃϢʔβʔͷ
    ೖྗΛ఻ୡ

18. © 2 0 2 0 A t r a e

    , I n c . | 3JWFSQPE 18 
    ࣮ࡍͷΞʔΩςΫνϟ 7JFX ɿࢀর͍ͯ͠Δํ޲ 3FQPTJUPSZ
    %BP
    ʜ 4UBUF ᶄ"1*௨৴ 4UBUF 4UBUF$POUSPMMFS
    4UBUF/PUJpFS ᶃϢʔβʔͷ
    ೖྗΛ఻ୡ

19. © 2 0 2 0 A t r a e

    , I n c . | 3JWFSQPE 19 
    ࣮ࡍͷΞʔΩςΫνϟ 7JFX ɿࢀর͍ͯ͠Δํ޲ 3FQPTJUPSZ
    %BP
    ʜ 4UBUF ᶄ"1*௨৴ 4UBUF 4UBUF$POUSPMMFS
    4UBUF/PUJpFS ᶅ4UBUF΁৽͍͠
    ɹΠϯελϯεΛ୅ೖ ᶃϢʔβʔͷ
    ೖྗΛ఻ୡ

20. © 2 0 2 0 A t r a e

    , I n c . | 3JWFSQPE 20 
    ࣮ࡍͷΞʔΩςΫνϟ 7JFX ɿࢀর͍ͯ͠Δํ޲ 3FQPTJUPSZ
    %BP
    ʜ 4UBUF ᶄ"1*௨৴ ᶅ4UBUF΁৽͍͠
    ɹΠϯελϯεΛ୅ೖ 4UBUF ᶆ4UBUFͷมߋΛݕ஌͠ɺ
    ɹ7JFXΛ࠶ੜ੒ʢϦϏϧυʣ ᶃϢʔβʔͷ
    ೖྗΛ఻ୡ 4UBUF$POUSPMMFS
    4UBUF/PUJpFS

21. © 2 0 2 0 A t r a e

    , I n c . | 21 ߟ͑ํ  7JFX͸ 4UBUF $POUSPMMFS΁ϢʔβʔͷೖྗΛ఻ୡ
     $POUSPMMFS͸ඞཁʹԠͯ͡3FQPTJUPSZΛܦ༝ͯ͠
    "1*௨৴
    %#ͱσʔλͷड͚౉͠Λ͢Δ
     $POUSPMMFS͸ɺ4UBUFͷมߋ͕ඞཁͳ৔߹ɺ
    ৽͍͠4UBUFͷΠϯελϯεΛ࡞੒͠ɺ஋Λม͑Δ
     $POUSPMMFSͷมߋΛ7JFX͕ݕ஌͠ɺ
    ࣗ਎ΛϦϏϧυ͢Δ
    ˞3JWFSQPE͸4UBUF$POUSPMMFSΛ7JFX΁*OKFDUJPO
    ɹ4UBUF$POUSPMMFSͷ4UBUFʹมߋ͕͋ͬͨΒ7JFXΛϦϏϧυ͢Δ 
    ࣮ࡍͷΞʔΩςΫνϟ

22. © 2 0 2 0 A t r a e

    , I n c . | 22 ߟ͑ํ  7JFX͸ 4UBUF $POUSPMMFS΁ϢʔβʔͷೖྗΛ఻ୡ
     $POUSPMMFS͸ඞཁʹԠͯ͡3FQPTJUPSZΛܦ༝ͯ͠
    "1*௨৴
    %#ͱσʔλͷड͚౉͠Λ͢Δ
     $POUSPMMFS͸ɺ4UBUFͷมߋ͕ඞཁͳ৔߹ɺ
    ৽͍͠4UBUFͷΠϯελϯεΛ࡞੒͠ɺ஋Λม͑Δ
     $POUSPMMFSͷมߋΛ7JFX͕ݕ஌͠ɺ
    ࣗ਎ΛϦϏϧυ͢Δ
    ˞3JWFSQPE͸4UBUF$POUSPMMFSΛ7JFX΁*OKFDUJPO
    ɹ4UBUF$POUSPMMFSͷ4UBUFʹมߋ͕͋ͬͨΒ7JFXΛϦϏϧυ͢Δ
    $POUSPMMFS͕7JFXʹ4UBUFͷ௨஌͍ͯ͠ΔͷͰ͸ͳ͘ɺ$POUSPMMFSͷ4UBUFͷ
    
    มߋΛ7JFX͕؂ࢹ͍ͯ͠ΔͷͰݫີʹ͸1BTTJWF
    .7$
    .7$
    PCTFSWFS
    
    
    ύλʔϯͱ͸গ͠ҧ͏͔΋͠Ε·ͤΜɻ 
    ࣮ࡍͷΞʔΩςΫνϟ

23. © 2 0 2 0 A t r a e

    , I n c . | 23 
    ࣮ࡍͷΞʔΩςΫνϟ

24. © 2 0 2 0 A t r a e

    , I n c . | 24 ᶃ(JUIVC3FQP-JTU7JFX͔Β(JUIVC3FQP%FUBJM7JFX΁ભҠ͢Δɻ
    ᶄ(JUIVC3FQP%FUBJM7JFXͰ3FQPTJUPSZʹελʔΛ͚ͭΔɻ
    ᶅ(JUIVC3FQP%FUBJM4UBUF$POUSPMMFSͷSFHJTUFS4UBS ΛݺͿɻ
    ᶆ"1*Λୟ͍ͯ௨৴ʹ੒ޭͨ͠Βɺ
    ɹ(JUIVC3FQP-JTU4UBUF$POUSPMMFSͷTUBSFE3FQPTJUPSZ
    Λݺͼɺ
    ɹ(JUIVC3FQP-JTU4UBUFΛߋ৽͢Δɻ
    ᶇ(JUIVC3FQP-JTU7JFXͰ4UBUFͷมߋΛݕ஌͠ɺ7JFX͕ϦϏϧυ͞Ε
    ɹҰཡͷ3FQPTJUPSZʹελʔ͕෇͍͍ͯΔঢ়ଶʹͳΔɻ 
    ࣮ࡍͷΞʔΩςΫνϟ

25. © 2 0 2 0 A t r a e

    , I n c . | 25 ࠓ೔͓࿩͢͠Δ͜ͱ  4UBUF/PUJpFSͱ͸
     3JWFSQPEͱ͸
     ࣮ࡍͷΞʔΩςΫνϟ
     .77.ͱ໋໊͠ͳ͔ͬͨཧ༝
     ·ͱΊ

26. © 2 0 2 0 A t r a e

    , I n c . | 3JWFSQPE 26 7JFX ɿࢀর͍ͯ͠Δํ޲ 3FQPTJUPSZ
    %BP
    ʜ 4UBUF 4UBUF 3JWFSQPEΛར༻ͯ͠4UBUF$POUSPMMFSΛ
    "QQMJDBUJPO
    ʹ͓͍ͯ
    4JOHMFUPO
    ͳΦϒδΣΫτʹͯ͠%*͍ͯ͠Δ 
    .77.ͱ໋໊͠ͳ͔ͬͨཧ༝ 4UBUF$POUSPMMFS
    4UBUF/PUJpFS

27. © 2 0 2 0 A t r a e

    , I n c . | 27 ߟ͑ํ w .77.ʹ͓͍ͯ͸ɺ7JFX
    
    7JFX.PEFM
    ͸جຊ̍ର̍ରԠ
    w ͦͯ͠ɺ7JFX.PEFM΁
    PO#VUUPO1SFTTFE
    ͳͲͷΑ͏ʹಛఆͷ
    7JFX
    ʹରԠͨ͠ϝιουΛ༻ҙ͢Δ͜ͱʹͳΔ 
    .77.ͱ໋໊͠ͳ͔ͬͨཧ༝

28. © 2 0 2 0 A t r a e

    , I n c . | 28 ߟ͑ํ 
    .77.ͱ໋໊͠ͳ͔ͬͨཧ༝ w ࠓճ࣮૷ͨ͠
    4UBUF$POUSPMMFS
    Ͱ͸ͦ͏͍ͬͨϝιου͸༻ҙͤ ͣɺ
    HFU6TFS%BUB
    HFU*UFNT
    ͳͲͷ௚઀తʹԿΛͯ͠΄͍͠ ͔ͷϝιουΛ༻ҙ͍ͯ͠Δ
    w ཧ༝ͱͯ͠͸ɺ ࠓͷͱ͜Ζ ͦ͜·Ͱಛఆͷ7JFXʹෳࡶͳϩδο ΫΛॻ͘ඞཁ͕ͳ͍
    w ͦΕΑΓ΋ը໘ؒͰڞ༗͍ͨ͠σʔλΛΑ͠ͳʹѻ͍͖͍ͬͯͨ
    w ͳͷͰɺ7JFX.PEFMΑΓ΋4UBUF$POUSPMMFSͱ͍͏໋໊ͷ΄͏͕ ద੾ͩͱߟ͑ͨ

29. © 2 0 2 0 A t r a e

    , I n c . | 29 ࠓ೔͓࿩͢͠Δ͜ͱ  4UBUF/PUJpFSͱ͸
     3JWFSQPEͱ͸
     ࣮ࡍͷΞʔΩςΫνϟ
     .77.ͱ໋໊͠ͳ͔ͬͨཧ༝
     ·ͱΊ

30. © 2 0 2 0 A t r a e

    , I n c . | 30 
    ·ͱΊ ·ͱΊ w ϓϩδΣΫτʹΑͬͯ͸ɺը໘ؒͰͷσʔλͷڞ༗͕ཁΒͣɺ
    ͦΕΑΓ΋ը໘ʹؔ͢ΔෳࡶͳϩδοΫΛѻ͍͍ͨ৔߹͕͋Δɻ ͦͷ৔߹͸7JFX.PEFMʹͨ͠΄͏͕͍͍͔΋஌Εͳ͍ɻ
    w 4UBUF$POUSPMMFSΛ4JOHMFUPOʹ͍ͯ͠Δ͜ͱͰϝϞϦ͕ͻͬͺ͘ ͞Ε͍ͯΔՄೳੑ΋͋ΔͷͰͦΕ͸ཁௐࠪ
    ஌ͬͯͨΒڭ͍͑ͯͩ͘͞
    w 7JFXʹؔ͢ΔϩδοΫ͕૿͖͑ͯͨΒ7JFX.PEFM૚ΛೖΕͯɺ
    .77.$
    ͳߏ੒ʹ͍ͯ͜͠͏ͱࢥ͏

31. © 2 0 2 0 A t r a e

    , I n c . | 31 ਓ͕׆͖׆͖ͱ׆ಈͰ͖Δ૊৫΍
    ͜ͷνʔϜ͸ࣗ෼ͷνʔϜͩͱݴ͑ΔΑ͏ͳ νʔϜΛ૿΍ͨ͢Ίͷ
    Τϯήʔδϝϯτղੳπʔϧ ݸਓ͕͍࣋ͬͯΔ՝୊ҙࣝ΍ࣗݾ࣮ݱͷ ΤωϧΪʔΛɺܗʹ͍ͯ͘͠࢓૊Έ
    "*ϏδωεϚονϯάΞϓϦ ςΫϊϩδʔʹΑͬͯਓͷՄೳੑΛ֦͛ΔࣄۀΛ૑଄ People Tech Company Business Concept ࣗ෼ʹͱͬͯͷ੨৴߸Λݟ͚ͭΔ·Ͱʹ ίετ΍όΠΞεΛఫഇ͠ɺਓͱ૊৫Λ ݩؾʹ͢ΔͨΊͷ
    ੒ޭใुܕٻਓϝσΟΞ ઈࢍΤϯδχΞ࠾༻தʂʂʂ
    5XJUUFS
    !NVUUTV@
    ˡ
    ؾܰʹ͝࿈བྷ͍ͩ͘͞